Dark Matter in galaxies: leads to its Nature

  title={Dark Matter in galaxies: leads to its Nature},
  author={Paolo Salucci and Mariafelicia De Laurentis},
  journal={arXiv: Astrophysics of Galaxies},
Recent observations have revealed the structural properties of the dark and luminous mass distribution in spirals. These results led to the vision of a new and amazing scenario. The investigation of single and coadded objects has shown that the rotation curves of spirals follow, from their centers out to their virial radii, an universal profile that implies a tuned combination of their stellar disk and dark halo mass distributions. This, alongside with accurate mass modeling of individual… 

Figures from this paper

Dark Matter in Galaxies: Evidences and Challenges

The evidence of the phenomenon for which, in galaxies, the gravitating mass is distributed differently than the luminous mass, increases as new data become available. Furthermore, this discrepancy is

Galactic structure explained with dissipative mirror dark matter

Dissipative dark matter, such as mirror dark matter and related hidden sector dark matter candidates, requires an energy source to stabilize dark matter halos in spiral galaxies. It has been proposed

“Non-cold” dark matter at small scales: a general approach

Structure formation at small cosmological scales provides an important frontier for dark matter (DM) research. Scenarios with small DM particle masses, large momenta or hidden interactions tend to

Tully-Fisher relation, galactic rotation curves and dissipative mirror dark matter

If dark matter is dissipative then the distribution of dark matter within galactic halos can be governed by dissipation, heating and hydrostatic equilibrium. Previous work has shown that a specific

Mirror dark matter: Cosmology, galaxy structure and direct detection

A simple way to accommodate dark matter is to postulate the existence of a hidden sector. That is, a set of new particles and forces interacting with the known particles predominantly via gravity. In

Understanding Galaxy Rotation Curves in terms of Interference of Gravitational Waves

This paper proposes a new way of understanding the difference between observed and predicted velocities of the stars at the out skirts of spiral galaxies, as follows: The massive stars orbiting

Novel constraints on noncold, nonthermal dark matter from Lyman- α forest data

In this paper we present an efficient method for constraining both thermal and non-thermal Dark Matter (DM) scenarios with the Lyman-$\alpha$ forest, based on a simple and flexible parametrisation

Mimetic Gravity: A Review of Recent Developments and Applications to Cosmology and Astrophysics

Mimetic gravity is a Weyl-symmetric extension of General Relativity, related to the latter by a singular disformal transformation, wherein the appearance of a dust-like perfect fluid can mimic cold


MNRAS, 353, L 17 9 P o S ( D S U 2 0 1 2 ) 0 1 2 DM in galaxies Paolo Salucci

  • 2004